Very high friction eleastomer formulation for use in static braking applications
US5093388A · kind A · utility
20Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L11/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A high friction brake shoe formulation having a high static friction coefficient in shear of about 1.5 and low adhesion to materials having microscopic pores therein in contact with said brake shoe formulation which comprises a mixture of about 75 phr of neoprene W rubber and about 25 phr of neoprene WHV rubber; a first curing system comprising about 1 phr of a fatty acid, about 5 phr of ZnO, and about 1-3 phr of MgO; and a second curing system comprising about 1.25 phr of sulfur and about 0.6 phr of a sulfur accelerator; together with about 50 phr of a reinforcing agent of N555 or N650 carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.